In AD2031, Sylia Stingray, having completed her highly powerful armored suit designs called Hardsuits, began to recruit women for her team of mercenaries that would be used to avenge her father's death that took place some nine years earlier. Through various channels she contacted Priscilla S. Asagiri, Linna Yamazaki, and Nene Romanova to form the Knight Sabers. Sylia, a brilliant tactician, scientist, and combat expert, led the women in a battle against GENOM that could ultimately decided the fate of mankind.